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20130201
20130228
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LINKTV 6
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Search Results 0 to 5 of about 6 (some duplicates have been removed)
LINKTV
Feb 12, 2013 6:00pm PST
in the air. i mean, the air is around us, right? okay? it leaves behind a hole in the air. aha, but wait a minute, the scholars said, "you can't have a hole in the air, because nature abhors a vacuum." so that vacuum gonna be filled up by the air. so you're gonna squeeze down in back and squeeze it right along. and so there's the force. the air squeezes it along. saturday night when you're taking your bath, try ivory soap, the kind that floats. and you sit in the bathtub and there is a soap right there and you go to grab it. you've done it before and you go, "oh, i have it" it keeps going away from you, right? [laughter] you squeeze it right through the water. well, it was thought that cannonballs were squeezed similarly through the air and arrows too. what do you guys think about that? not too many people were satisfied with that, but that's the best they could do at the time. there gotta be some explanation. what's a better one? and along came an italian type by the name of galileo who turned it all upside down. everyone's looking for the force responsible for the motion, galileo said,
LINKTV
Feb 20, 2013 8:00am PST
, universal, you're right. universal, that gravity extends everywhere. and what this equation tells us? the equation of gravity just tells us that there's an attractive force, 'f' between all things and for any two things that attractive force depends upon, is proportional to, is related to the product of the masses of the two things. this might be a planet, one. this might be another planet, two. those two planets are tugging on each other with the force that depends very much on how much mass they have, but it also peters out with distance square. as the distance between those planets or those chunks of matter or those particles, as the distance between increases, guess what happens to the force? just what you would expect to happen. - larger or smaller? - smaller. how many say, "oh, it seems to me "as the planets get further and further away, they pull harder and harder on each other?" stand up, i wanna see what you look like. nobody say that. but you see, we can say that statement here mathematically by putting this downstairs, huh? as that make the distance big, what happens to th
LINKTV
Feb 6, 2013 8:00am PST
okay, let's begin. it used to be thought that the earthth was at rest and the stars went around us. and how could you tell whether or not the earth is at rest and the stars are going around us, or the stars are maybe at rest, we're going around them? in fact, what's the nearest star? begins with an s. you are now-- let me tell you. begins with a s, ends with a n, got a u in the middle, try it. sun. sun. very good, okay. that's the sun. the sun is the nearest star, okay? and we go around, around, around the sun, is that true? but it was one time thought that's not the case. and one of the arguments that was advanced to show that the earth really is at rest and not the other way around is the following: consider a bird at the top of a tree, and down below there's a juicy worm just coming up to the ground. and the bird is up at the top and looks down and sees the worm. now, we know from experience that's its possible for that bird to drop from the tree, come down, catch the worm and fly back up. true? and it was stated as such. it was calculated how fast the world would have to be mov
LINKTV
Feb 7, 2013 8:00am PST
harder? is that so? you used to say i'm pulling harder because you see the rope moving this way. that's what you used to say. remember the old days, when you didn't have that spark called what, begin with a f. - physics. - physics, all right? and now you're getting that spark, right? and now you're starting to see the world a little differently. let's try this with a couple of scale. attach this right on here. okay, now you pull that side and we can measure the force, gang, yeah? and i'll pull over here. now you look to see who pulls harder, me on helen or helen on me? and here we go. how do the readings look, gang? huh? which one is harder? how about there? how about there? and what are they, gang? ss, same same. i can't pull on you any harder than you pull on me, okay? and when i touch you-- who's touching you? am i touching her or she touching me? she's touching my hand, i felt it. from my point of view she's touching me. from her point of view i'm touching her. who's touching who? we're touching each other. thank you, helen. my thumb, my forefinger, they're pulling on each other.
LINKTV
Feb 28, 2013 8:00am PST
? deprived childhood is-- well, most of us have looked at such things, right? let me ask you a question. how strong you suppose that ant is? strong or strong-strong? strong-strong. compared to-- for sure? compared to what? good point. let's suppose this happens, gang. an elephant walks to this door. the elephant is gonna start lifting up logs. a door over here, an ant walks through that's just as big as the elephant, a super ant. this super ant is been-- [makes sounds] --i don't know how it's been done, science fiction, okay? scaled up. and it scaled up, so, that ant-- [makes sounds] --the same size as the elephant. now, they're gonna have a contest to see who can lift a greater load. who are you gonna be betting on? elephant. ants. check your neighbor. is there anyone in here says, "honey, the ant can't even do push ups. the elephant is the one that's the strongest." show of hands. all right. these are my people. these are the people who have read the book. the rest of you guys come in for a free lunch today, right? what's that thing all about, yeah? come on. that ant couldn't make it. the
Search Results 0 to 5 of about 6 (some duplicates have been removed)